CN101517100A - Method of reheating in a furnace using a fuel of low calorific power, and furnace using this method - Google Patents
Method of reheating in a furnace using a fuel of low calorific power, and furnace using this method Download PDFInfo
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- CN101517100A CN101517100A CNA2007800338105A CN200780033810A CN101517100A CN 101517100 A CN101517100 A CN 101517100A CN A2007800338105 A CNA2007800338105 A CN A2007800338105A CN 200780033810 A CN200780033810 A CN 200780033810A CN 101517100 A CN101517100 A CN 101517100A
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- accumulation
- heat
- burner
- temperature
- preheating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The present invention provides a method of controlling a furnace (1) for reheating steel products, such as slabs, blooms, slugs or billets, capable of reheating the product to the desired temperature for rolling, the furnace being equipped with a heat recovery unit (A). The furnace is equipped principally with regenerative-type burners comprising regenerative matrices and operating on an all-or-nothing basis; the burners operate by duration modulation; some of the combustion fumes pass through the regenerative matrices of the regenerative burners in order to preheat one (fuel or oxidizer) of the fluids involved in combustion; and the remainder of the combustion fumes pass through the heat recovery unit (A) to preheat the fluid (oxidizer or fuel) other than that preheated in the regenerative matrices.
Description
Technical field
The present invention relates to the process furnace of a kind of method of controlling process furnace, particularly metallurgical products such as slab, Steel Bloom, blank or ingot casting, making can be with the low calorie fuels that is commonly referred to " lean gas " wanting heating product to be heated to rolling required temperature.
Background technology
" lean gas " is meant that calorific value is at 2700 KJ (kilojoule)/standard cubic meter (kJ/Nm
3) to the geseous fuel between 4000 KJ (kilojoule)/standard cubic meter.
These stingy general rare gas elementes by significant proportion constitute, and as nitrogen and carbonic acid gas, they play a part ballast, and should be heated in burning, so the theory of control temperature of combustion.
Describe the running condition of using low calorific value gas fuel, for example blast furnace gas in detail below by example.
Blast furnace gas generates as byproduct when Cast Iron Production from blast furnace.Its major advantage is and can obtains " gratuitously ", therefore can be used as the stove that fuel offers the smelting iron and steel scene.Its calorific value is lower, is about 3500 KJ (kilojoule)/standard cubic meter, this and its rare gas element N
2And CO
2The chemical ingredients that content is very high is relevant.In order to make about 1150-1280 ℃ tapping temperature wanting heating product to reach rolling requirement, furnace wall and combustion product gases must reach about 1300-1400 ℃ high temperature.According to prior art, when only using lean gas, theoretical combustion temperature is difficult to reach this temperature.The top temperature that gas may reach when theoretical combustion temperature was the burning end.The final state of the fuel/oxidizer mixture that this temperature obtains in stoichiometric calculation ratio or definite ratio when determining beginning is calculated, fuel/oxidizer mixture through instantaneous adiabatic combustion, does not therefore have heat exchange with surrounding environment under constant pressure.Theoretical combustion temperature can not obtain in stove because on the one hand, the instantaneous never generation of burning, on the other hand, flame always with its surrounding environment heat-shift.Therefore, under these specified criterias, can only effectively obtain actual flame temperature less than theoretical temperatures.Ratio between this actual temperature and the theoretical temperatures is called " high temperature efficient ".In this notion " the stingy fuel in the ferrous metallurgy continuous oven " literary composition in the Revue G é n of for example the 232nd phase of April in 1981 é rale deThermique periodical detailed introduction is arranged.The high temperature efficient of blast furnace gas for example is 0.80.For the technical problem to be solved in the present invention is described, considered this value.
Therefore, exist the top temperature of flue gas to be equivalent to the actual temperature of flame in the stove.
Know that the method that improves theoretical combustion temperature is at the upstream of burner nozzle preheated burning gas or ignition dope.
The method that prior art is used is that perhaps by being arranged in the interchanger of flue gas pipeline, perhaps the accumulation of heat module by heat-accumulation combustor makes the preheating of one of two fluids of participation incendiary.
Fig. 1-the 4th, the calculated value table of the fuel of the stingy type of a kind of blast furnace, its volume composition is as follows: N
256.7%, CO 24.5%, CO
216.7%, H
22.0%, other is 0.1% years old.Combustion conditions is shown in gauge outfit.
Calculating shown in Figure 1 shows, during the combustion gases preheating, 1250 ℃ gas temperature is not enough to obtain the flue-gas temperature similar to the temperature that reaches by rich gas, promptly 1400 ℃ or higher.Therefore, the preheating temperature level of this gas can not obtain by the industrial heat exchange device that is arranged in flue gas pipeline, says nothing of higher temperature levels.
Can make the temperature head between flue gas and the preheating gas reach 150 ℃ to the pyritous heat-accumulation combustor gas heating.But the gas preheating temperature of heat-accumulation combustor is limited between 1150 ℃ to 1200 ℃.
Therefore, a preheated burning gas can not obtain to be enough to the furnace wall temperature product by heating to 1200 ℃.
Calculating shown in Figure 2 shows, in order to obtain and the similar flue-gas temperature of the temperature that obtains by rich gas (1400 ℃ and more than), must be preheating to 1000 ℃ temperature to the preheating of lean gas.Can reach this temperature levels by the preheating in heat-accumulation combustor.But because some technical problems, this method can not industrial implementation, and these technical problems make this method be difficult to implement, as the inherent peril of gas under this temperature levels, and the problem that causes of the cracking of gas under this temperature.Therefore only the preheating by lean gas can not be enough to furnace wall temperature product by heating to 1200 ℃ in industrial acquisition.
The another kind of method that can increase theoretical combustion temperature is to realize the peroxidation of combustion gases, promptly increases its oxygen level.
The calculating of 450 ℃ of ignition dopes of use shown in Figure 3 shows that this method can not be satisfactory, even because ignition dope is heated to 450 ℃, in order to reach the flue-gas temperature near 1400 ℃, need make the oxygen level in the ignition dope is 80%.For security reasons, will be almost pure oxygen be preheating to this temperature industrial be unpractical.In addition, different according to the cubic meter cost of factory and oxygen, the profitability of this method will great changes have taken place.For the same reason, lower oxygen level combines with stingy heating neither gratifying method.
Therefore, the method for using according to prior art can not only make by low calorie fuels under gratifying condition and want heating product to be heated to rolling required temperature.
Summary of the invention
In order to solve this technical problem, the present invention mainly is to control the process furnace of the method for process furnace, particularly metallurgical products such as slab, Steel Bloom, blank or ingot casting, and this method can make wants heating product to reach rolling required temperature, stove is equipped with interchanger, it is characterized in that:
-this stove is furnished with the burner of the heat-accumulation combustor type that occupies the majority, and this burner has the accumulation of heat module, and with standard-sized sheet or complete shut-down mode operation;
-burner moves in the mode of regulating the time;
-a part of combustion product gases carries out preheating by the accumulation of heat module of heat-accumulation combustor so that one of them is participated in incendiary fluid (fuel or ignition dope);
-remaining combustion product gases is arranged in the interchanger of stove outside at a flue by one, so that the fluid outside the fluid of preheating in the accumulation of heat module (ignition dope or fuel) is carried out preheating.
Advantageously, the use that only acts as a fuel of a kind of lean gas, and one of them is participated in the high temperature preheating that incendiary fluid obtains when the accumulation of heat module by burner, the preheating that obtains by interchanger the time with another participation incendiary fluid combines, and makes and wants heating product to reach temperature required at outlet of still.
Determine flue gas flow by the accumulation of heat module of a heat-accumulation combustor, so that obtain flue gas temperature required in the heat-accumulation combustor outlet, and the fluid that correspondingly obtains to want preheating temperature required by after the accumulation of heat module.
Best, for time constant cycle,, make burner transmit required calorific value in the working time of the heating mode of each each heat-accumulation combustor of periodic adjustment with the conversion between two a pair of heat-accumulation combustors.
In order to reach enough flame temperatures when the ignition phase of stove or the operation of low operating mode, by using the stove burner of close interchanger, perhaps use one or several auxiliary burner, make fluidic temperature advantageously remain on a minimum level from interchanger.Best, auxiliary burner is positioned on the flue gas pipeline of interchanger upstream.
Ratio by the flue gas that passes through from interchanger is accurately controlled furnace pressure, with entering of limit air.
Advantageously, a stingy temperature that in the accumulation of heat module of burner, is heated between 600 ℃ to 800 ℃,
-stingy calorific value in 2700 KJ (kilojoule)/standard cubic meter between 4000 KJ (kilojoule)/standard cubic meter,
-ignition dope is formed by the air that is preheating to a temperature 400 ℃ to 600 ℃ in interchanger, so that obtain a flue-gas temperature that is higher than 1300 ℃, this temperature can make wants heating product to reach a temperature between 1150 ℃ to 1280 ℃.
Best, the burner of heat-accumulation combustor type is positioned at the stove opposed side edges, and be divided into paired relative sets of burners, the a pair of burner that is positioned at a side is controlled, make burner alternately as burner and flue operation, make a pair of burner that is positioned at opposite side simultaneously alternately as flue and burner.The quantity of the burner of heat-accumulation combustor type is greater than the sum of the burner of another type.
With time constant cycle of changing between two a pair of heat-accumulation combustors advantageously between 40 to 80 seconds, and, regulate the working time of each heat-accumulation combustor heating mode in each cycle, make burner transmit desired calorific value.
The invention still further relates to the process furnace of metallurgical products, particularly slab, Steel Bloom, blank or ingot casting, this process furnace can make wants heating product to reach rolling required temperature, this process furnace has an interchanger, and this process furnace is characterised in that it has:
-on the one hand, and the burner of the heat-accumulation combustor type that occupies the majority, these burners have the accumulation of heat module, and move in the mode of standard-sized sheet or complete shut-down;
The device that-mode that burner was regulated with the time is moved;
-make a part of combustion product gases pass through the accumulation of heat module of heat-accumulation combustor so that preheating participates in or another fluidic device in the incendiary fluid (fuel or ignition dope);
-make the interchanger of the flue of remaining combustion product gases by being arranged in the stove outside so that the device of the fluid (ignition dope or fuel) that preheating is not heated in the accumulation of heat module.
Description of drawings
The present invention also has the alternate manner of some amount except such scheme, will explain the present invention by the embodiment that describes with reference to the accompanying drawings below, and these embodiment are complete, and right and wrong are determinate.In the accompanying drawing:
Fig. 1-the 3rd, the calculated value form that the fuel of the stingy type of a kind of blast furnace obtains according to the method for prior art, this stingy volume composition is as follows: N
256.7%, CO 24.5%, CO
216.7%, H
22.0%, other is 0.1% years old.
Fig. 4 is the calculated value form that uses the inventive method to obtain with the stingy type fuel of the similar blast furnace of Fig. 1-3.
Fig. 5 is the floor map according to process furnace of the present invention.
Fig. 6 is the vertical cross-section figure of the stove of Fig. 5 at two relative heat-accumulation combustor places.
Embodiment
As embodiments of the invention, the form of Fig. 4 illustrate by lean gas in the accumulation of heat module, be preheating to 700 ℃ mild temperature with combustion gases be heated to 450 ℃ combine in interchanger, can reach the desired flame temperature of heating products.
One of the inventive method is characterised in that, flue gas is distributed in two different pipelines, can carry out preheating to fuel or ignition dope according to pipeline, and at least one of these flue gas pipelines passed one and exhausted the interchanger that stove is discharged flue gas.
Another feature of the inventive method is, by will be wherein one participating in the preheating that the incendiary fluid obtains when the accumulation of heat module by burner and combine with the preheating that another participation incendiary fluid obtains by interchanger the time, make and only to use a kind of lean gas, by the high temperature of flame, make and want heating product to meet the requirements of temperature at outlet of still.
Another feature of the inventive method is, determines the flue gas flow by the accumulation of heat module of a heat-accumulation combustor, so that obtain flue gas temperature required in the heat-accumulation combustor outlet, and wants preheating fluid temperature required by after the accumulation of heat module accordingly.
In fact, for the stingy flame temperature that needs that reaches,, ignition dope and fuel are carried out preheating according to the present invention.In order to make the fluid of wanting preheating meet the requirements of temperature, must make the accumulation of heat module can be to the corresponding heat energy of fluid transmission in the outlet of accumulation of heat module.If the accumulation of heat module reaches enough temperature when burner flue mode operation before, thermal energy transfer is possible.In fact, to the accumulation of heat module of certain mass, the energy that is stored in the module is corresponding with this temperature, and when burner moved with heating mode next time, when fluid passed through module, these energy can be delivered in the fluid of wanting preheating.
According to this feature of the present invention, when the flue mode operation, the mobile flue gas flow is restricted to and reaches temperature required on the accumulation of heat module and flow that need in the accumulation of heat module.Unnecessary flue gas flow is discharged to outside the stove by tubular interchanger, and another participates in the incendiary fluid this interchanger preheating, therefore helps the good thermal efficiency of stove integral body.
Another feature of the inventive method is, for time constant cycle with the conversion between two a pair of heat-accumulation combustors, to the heating mode working time of each each heat-accumulation combustor of periodic adjustment, makes burner transmit required calorific value.
Time work period of a burner comprises and adds the working time of upper flue pattern the working time of heating mode.For constant cycle time, performance working time that reduces heating mode owing to the heat energy demand is lower increases the time of growing equally for the flue mode operation.Because burner is longer in the time of flue mode operation, the mobile flue gas flow reduces in the accumulation of heat module, therefore makes the energy limited that is stored in the module to wanting the preheating fluid in burner required amount when heating mode moves next time.Equally, unnecessary flue gas flow is discharged to outside the stove by passing tubular interchanger, and another participates in the incendiary fluid interchanger preheating, therefore helps the good thermal efficiency with stove integral body.
According to one embodiment of present invention, time constant cycle of a burner is 60 seconds, and wherein the basic time of heating mode operation is 30 seconds, and be 30 seconds the working time of flue pattern.The calorific value that requires when burner be its specified calorific value 100% the time, burner is heating mode operation 30 seconds, then flue mode operation 30 seconds.When the calorific value that burner is required be it specified calorific value 50% the time, burner is heating mode operation 15 seconds, then flue mode operation 45 seconds.Because burner is put into operation at heating mode needs certain hour, therefore there is the minimum duration of a heating mode, for example 5 seconds.Therefore, according to the heat energy demand, the time of heating mode operation between second, to 60 seconds time constant cycle, whenever subtracts one second at 5-30 on heat-up time, and just increase by one second the working time of flue pattern.
Another feature of the inventive method is that utilization is controlled furnace pressure exactly from the flue gas ratio that tubular interchanger passes through, and enters with restriction gas.According to the present invention, the flue gas flow that burner is discharged by the accumulation of heat module is limited.Therefore, a large amount of flue gases that exist in the stove are used to control the stress level of stove, and these flue gases act on the flue gas delivery flow by an air-lock or gas exhauster, and the motor of air-lock or gas exhauster is controlled by a current inverter.
Fig. 5 illustrates one embodiment of the present of invention, and this illustrates one of a flue B the being arranged in stove 1 outside for example interchanger A of tubular type.Combustion gases and/or preheating of fuel therefore be at heat-accumulation combustor 2a, 2b (Fig. 6) the upstream, outside them, realize.To all burners that relate to, preheating is carried out in interchanger.Preheating is carried out continuously by the heat exchange between hot-fluid and the cold fluid.In heat-accumulation combustor 2a and 2b, flue gas and want the transmission ofenergy between the preheating fluid directly to realize in burner perhaps near burner, is realized in accumulation of heat module 3a, the 3b that the compact block by heat-storing material forms.
What be preheated in an illustrated embodiment, is combustion gases.Combustion gases lead to a feeder 6 from blower fan 4 by air-supply duct 5, and feeder 6 is distributed in gas on four parallel pipelines, and each pipeline is furnished with two continuous interchangers of two channels.Collector 7 is accepted the gas that is preheated in the outlet of interchanger, so that by air-supply duct 8 gas is distributed to burner 2a and 2b.On flue gas pipeline, flue B can bring interchanger A the flue gas of discharging from stove 1, and flue gas cools off in interchanger A, brings combustion gases heat simultaneously, discharges by flue 9 then.
Describe the principle of work of heat-accumulation combustor now in detail.
As shown in Figure 6, heat-accumulation combustor 2a, 2b are mounted in pairs on the stove 1.Burner is installed on the relative vertical wall of stove, faces one another in couples.In the mode of taking turns, one of a pair of burner when heating, another is as flue.
Each burner comprises member 4a, a 4b, member 5a, a 5b and member 6a, a 6b, member 4a, 4b are formed by a motorized valve especially, entering of control fuel, member 5a, 5b are formed by a throttling valve especially, the control combustion gases enter by a pipe 8, and member 6a, 6b are formed by a throttling valve especially, can discharge combustion gases.Be noted that same member, T-valve for example can guarantee two functions of member 5,6.
As shown in Figure 6, as burner 2b during as flue, exhaust component 6b opens, and air inlet member 5b closes.Combustion gases pass through an independent pipeline as shown in Figure 5 then by accumulation of heat module 3b,, are discharged in the atmosphere up to flue 11 by pipeline 10.
When burner 2b heated, therefore the counter-rotating of the position of each member was that combustion gases are by the accumulation of heat module, then with fuel mix, so that burned specifically.
Therefore, each burner alternately with heating mode operation, be made up of a heating phase and a flue stage by the time of the cycle of operation, and the time length is usually at 30-120 between second.This time length depends on that the volume of accumulation of heat module and it can accumulative thermal capacity, and do not do the parameter of description here.
In example shown in Figure 6, be that combustion gases are preheated by the accumulation of heat module time.According to another embodiment, be that fuel is preheated by the accumulation of heat module time.
Burner is regulated according to the required heat of stove at the power of heating mode output.First kind of adjusting pattern is to adjust the power of burner at the fuel flow of heating mode run duration by changing burner.Advantageously, adjusting pattern according to the present invention is to make fuel flow to keep constant, and the adjustment burner is in the working time of heating mode.
Claims (12)
1. the control method of the process furnace of a metallurgical products, described metallurgic product is slab, Steel Bloom, blank or ingot casting especially, and this method can make wants heating product to reach rolling required temperature, and described stove is furnished with an interchanger, it is characterized in that:
-described stove be furnished with the heat-accumulation combustor type that occupies the majority burner (2a, 2b), described burner has the accumulation of heat module, and (3a 3b), and moves in the mode of standard-sized sheet or complete shut-down;
-burner moves in the mode of regulating the time;
-a part of combustion product gases is by the accumulation of heat module of heat-accumulation combustor, so that one of them fluid (fuel or ignition dope) that participates in the incendiary fluid is carried out preheating;
-remaining combustion product gases by be arranged in described stove outside, at the interchanger (A) of a flue (B), so that the fluid outside the fluid of preheating in the accumulation of heat module (ignition dope or fuel) is carried out preheating.
2. the method for claim 1 is characterized in that:
The use that only acts as a fuel of-a kind of lean gas;
-one of them is participated in the incendiary fluid at the accumulation of heat module (3a by burner, the high temperature preheating that obtains in the time of 3b), the preheating that obtains by interchanger (A) time with another participation incendiary fluid combines, and makes and must heating product can reach required temperature at outlet of still.
3. method as claimed in claim 1 or 2, it is characterized in that, determine flue gas flow by the accumulation of heat module of a heat-accumulation combustor, so that obtain flue gas temperature required in the heat-accumulation combustor outlet, and the fluid that correspondingly obtains to want preheating temperature required by after the accumulation of heat module.
4. as the described method of one of claim 1-3, it is characterized in that, for time constant cycle,, make burner transmit required calorific value in the working time of the heating mode of each each heat-accumulation combustor of periodic adjustment with the conversion between two a pair of heat-accumulation combustors.
5. as the described method of one of claim 1-4, it is characterized in that, in order to reach enough flame temperatures when the ignition phase of stove or the operation of low operating mode, perhaps by using the most described burner of the stove of close interchanger, perhaps use one or several auxiliary burner, make fluidic temperature remain on a minimum level from interchanger (A).
6. method as claimed in claim 5 is characterized in that, auxiliary burner is positioned on the flue gas pipeline of interchanger (A) upstream.
7. as the described method of one of claim 1-6, it is characterized in that, utilize the ratio of the flue gas that passes through from interchanger (A) accurately to control pressure in the stove, with entering of limit air.
8. as the described method of combination of claim 2 or one of claim 2 and claim 3-7, it is characterized in that:
-stingy temperature that in the accumulation of heat module of burner, is preheating between 600 ℃ to 800 ℃,
-stingy calorific value in 2700 KJ (kilojoule)/standard cubic meter between 4000 KJ (kilojoule)/standard cubic meter,
-ignition dope is formed by the air that is preheating to a temperature 400 ℃ to 600 ℃ in interchanger (A), so that obtain a flue-gas temperature that is higher than 1300 ℃, makes to make and wants heating product to reach a temperature between 1150 ℃ to 1280 ℃.
9. as one of above-mentioned claim described method, it is characterized in that (2a, quantity 2b) is greater than the sum of the burner of another type for the burner of heat-accumulation combustor type.
10. as one of above-mentioned claim described method, it is characterized in that, with time constant cycle of the conversion between two a pair of heat-accumulation combustors at 40-80 between second, and in each cycle, regulate the working time of the heating mode of each heat-accumulation combustor, make burner transmit required calorific value.
11. the process furnace of metallurgical products, described product is slab, Steel Bloom, blank or ingot casting especially, and this process furnace can make wants heating product to reach rolling required temperature, and this process furnace has an interchanger, it is characterized in that it has:
-on the one hand, and the burner of the heat-accumulation combustor type that occupies the majority (2a, 2b), these burners have the accumulation of heat module, and (3a 3b), and moves in the mode of standard-sized sheet or complete shut-down;
-make burner (2a, 2b) device (4a, the 5a that move of the mode of regulating with the time; 4b, 5b);
-make the accumulation of heat module of a part of combustion product gases by heat-accumulation combustor (3a, 3b), with preheating participate in the incendiary fluid (fuel or ignition dope) one or another fluidic device (6a, 6b);
-make the interchanger (A) of the flue (B) of remaining combustion product gases by being arranged in described stove outside, the device (B) of the fluid (ignition dope or fuel) that do not heat in the accumulation of heat module with preheating.
12. process furnace as claimed in claim 11 is characterized in that, (2a, quantity 2b) is greater than the quantity of other burner for the burner of heat-accumulation combustor type.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0607999 | 2006-09-13 | ||
| FR0607999A FR2905753B1 (en) | 2006-09-13 | 2006-09-13 | METHOD OF HEATING IN OVEN USING FUEL WITH LOW CALORIFIC POWER, AND OVEN USING THE SAME |
| PCT/FR2007/001461 WO2008031937A2 (en) | 2006-09-13 | 2007-09-11 | Method of reheating in a furnace using a fuel of low calorific power, and furnace using this method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101517100A true CN101517100A (en) | 2009-08-26 |
| CN101517100B CN101517100B (en) | 2012-11-21 |
Family
ID=37976455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800338105A Expired - Fee Related CN101517100B (en) | 2006-09-13 | 2007-09-11 | Method of reheating in a furnace using a fuel of low calorific power, and furnace using this method |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20100047727A1 (en) |
| EP (1) | EP2059616B1 (en) |
| CN (1) | CN101517100B (en) |
| AR (1) | AR062774A1 (en) |
| BR (1) | BRPI0716999A2 (en) |
| EA (1) | EA016077B1 (en) |
| ES (1) | ES2547010T3 (en) |
| FR (1) | FR2905753B1 (en) |
| PL (1) | PL2059616T3 (en) |
| TW (1) | TW200821389A (en) |
| WO (1) | WO2008031937A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029302B (en) * | 2009-09-30 | 2012-10-03 | 南阳理工学院 | Long copper and aluminum ingot hot shearing heating furnace |
| CN102853448A (en) * | 2012-07-05 | 2013-01-02 | 河北省首钢迁安钢铁有限责任公司 | Optimization method for combustion system of slab heat accumulating type heating furnace |
| CN110291352A (en) * | 2017-02-13 | 2019-09-27 | 布卢姆工程公司 | Double mode energy storage type buner system and the method for using double mode energy storage type buner system heated crucible |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2934033B1 (en) | 2008-07-15 | 2010-09-03 | Fives Stein | DEVICE FOR CONTROLLING REGENERATIVE BURNERS. |
| ES2537415T3 (en) | 2013-03-28 | 2015-06-08 | Linde Aktiengesellschaft | Combustion method of a low quality fuel |
| CN115354142B (en) * | 2022-08-18 | 2023-11-28 | 重庆赛迪热工环保工程技术有限公司 | Combustion control method of heating furnace |
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| GB191218148A (en) * | 1911-08-14 | 1913-04-10 | Poetter Gmbh | Improvements in Open-hearth Furnaces adapted for use with Blast Furnace Gas. |
| US3148868A (en) * | 1960-03-24 | 1964-09-15 | United States Steel Corp | Reheating furnace |
| GB2214625B (en) * | 1987-12-24 | 1992-01-02 | British Steel Plc | Regenerative burner system |
| IT1216700B (en) * | 1988-04-01 | 1990-03-08 | Pomini Farrel S P A Castellanz | HEATING, MAINTENANCE AND STORAGE OVEN FOR STEEL PRODUCTS. |
| US6071116A (en) * | 1997-04-15 | 2000-06-06 | American Air Liquide, Inc. | Heat recovery apparatus and methods of use |
| US5921771A (en) * | 1998-01-06 | 1999-07-13 | Praxair Technology, Inc. | Regenerative oxygen preheat process for oxy-fuel fired furnaces |
| BR0109303A (en) * | 2001-01-17 | 2002-12-17 | Kawasaki Steel Co | Heating furnace having heat regeneration burners and their method of operation |
| FR2853959B1 (en) * | 2003-04-18 | 2005-06-24 | Stein Heurtey | METHOD FOR CONTROLLING THE HOMOGENEITY OF PRODUCT TEMPERATURE IN A STEEL HEATING FURNACE, AND A HEATING FURNACE |
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2006
- 2006-09-13 FR FR0607999A patent/FR2905753B1/en not_active Expired - Fee Related
-
2007
- 2007-09-07 TW TW096133621A patent/TW200821389A/en unknown
- 2007-09-11 EP EP07823495.2A patent/EP2059616B1/en active Active
- 2007-09-11 PL PL07823495T patent/PL2059616T3/en unknown
- 2007-09-11 EA EA200970268A patent/EA016077B1/en not_active IP Right Cessation
- 2007-09-11 WO PCT/FR2007/001461 patent/WO2008031937A2/en active Application Filing
- 2007-09-11 US US12/440,520 patent/US20100047727A1/en not_active Abandoned
- 2007-09-11 CN CN2007800338105A patent/CN101517100B/en not_active Expired - Fee Related
- 2007-09-11 ES ES07823495.2T patent/ES2547010T3/en active Active
- 2007-09-11 BR BRPI0716999-0A2A patent/BRPI0716999A2/en not_active IP Right Cessation
- 2007-09-12 AR ARP070104048A patent/AR062774A1/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029302B (en) * | 2009-09-30 | 2012-10-03 | 南阳理工学院 | Long copper and aluminum ingot hot shearing heating furnace |
| CN102853448A (en) * | 2012-07-05 | 2013-01-02 | 河北省首钢迁安钢铁有限责任公司 | Optimization method for combustion system of slab heat accumulating type heating furnace |
| CN102853448B (en) * | 2012-07-05 | 2015-05-06 | 北京首钢股份有限公司 | Optimization method for combustion system of slab heat accumulating type heating furnace |
| CN110291352A (en) * | 2017-02-13 | 2019-09-27 | 布卢姆工程公司 | Double mode energy storage type buner system and the method for using double mode energy storage type buner system heated crucible |
| CN110291352B (en) * | 2017-02-13 | 2023-11-17 | 布卢姆工程公司 | Dual mode electric storage burner system and method for heating a furnace using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008031937A3 (en) | 2008-05-15 |
| AR062774A1 (en) | 2008-12-03 |
| EP2059616A2 (en) | 2009-05-20 |
| FR2905753B1 (en) | 2008-11-07 |
| FR2905753A1 (en) | 2008-03-14 |
| PL2059616T3 (en) | 2015-12-31 |
| EA016077B1 (en) | 2012-01-30 |
| EP2059616B1 (en) | 2015-09-09 |
| TW200821389A (en) | 2008-05-16 |
| ES2547010T3 (en) | 2015-09-30 |
| EA200970268A1 (en) | 2009-10-30 |
| US20100047727A1 (en) | 2010-02-25 |
| CN101517100B (en) | 2012-11-21 |
| WO2008031937A2 (en) | 2008-03-20 |
| BRPI0716999A2 (en) | 2013-10-08 |
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